Advanced Electrochemical Deposition Techniques for Lithium and Sodium Metal Anodes

Electrochemical deposition (ECD) of alkali metals remains a focal point of research aimed at advancing higher energy density lithium (Li) and sodium (Na) metal anodes, as well as contemporary anode-free rechargeable systems. A major drawback of this is the tendency for Li and Na to form mossy and/or dendritic structures which can trigger short circuits and affect battery safety. Thus, despite intense efforts dedicated to mitigating dendrite growth, this phenomenon remains a serious limitation that prevents metal batteries from displacing conventional Li-ion counterparts.

 

Researchers at Arizona State University have developed an innovative method to manipulate the growth kinetics during the ECD of Li and Na to produce anatomically flat overlayers without the formation of mossy growths or dendrites. This technology introduces novel methods and use of strategic materials to refine ECD processes of lithium and sodium metal anodes. These techniques promote smooth, dendrite-free metal layers, overcoming traditional issues that cause short circuits in metal anodes and ultimately battery failure.

 

This innovative electrochemical deposition method prevents mossy growths or dendrite formation in lithium and sodium metal anodes for enhanced battery safety and performance.